package com.csu.csumall.service;

import com.baomidou.mybatisplus.extension.service.IService;
import com.csu.csumall.entity.User;

public interface IUserService extends IService<User> {
    public boolean isUnusedPhone(String phone);
    public boolean isUnusedEmail(String email);
    public boolean isUnusedUsername(String username);
}
